Improper input validation in the dashboards-observability plugin in OpenSearch Dashboards allows a remote authenticated user with write permissions to OpenSearch Dashboards saved objects to execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 23 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Opensearch opensearch Dashboards
Vendors & Products Opensearch opensearch Dashboards

Fri, 21 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
References
Metrics cvssV4_0

{'score': 6.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H'}

cvssV4_0

{'score': 6.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}


Fri, 21 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in the dashboards-observability plugin in OpenSearch Dashboards allows a remote authenticated user with write permissions to OpenSearch Dashboards saved objects to execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.
Title Stored Cross-Site Scripting via Integration Template Asset in OpenSearch Dashboards
First Time appeared Aws
Aws amazon Opensearch Service
Opensearch
Opensearch opensearch Dashboards Dashboards-observability Plugin
Weaknesses CWE-79
CPEs cpe:2.3:a:aws:amazon_opensearch_service:*:*:*:*:*:*:*:*
cpe:2.3:a:opensearch:opensearch_dashboards_dashboards-observability_plugin:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws amazon Opensearch Service
Opensearch
Opensearch opensearch Dashboards Dashboards-observability Plugin
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 6.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-08-27T16:46:19.625Z

Reserved: 2026-08-21T13:59:32.562Z

Link: CVE-2026-77811

cve-icon Vulnrichment

Updated: 2026-08-27T16:09:43.779Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-21T21:17:08.903

Modified: 2026-08-27T20:18:39.860

Link: CVE-2026-77811

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-23T16:40:46Z

Weaknesses